Run results for: Lodash vs. Set Difference Method

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Lodash	3912552.5 Ops/sec
Set	1895919.9 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js"></script>

Script Preparation code:

var a = [1, 2, 3, 4, 5]
var b = [3, 4, 5, 6, 7]

Tests:

Lodash
var c = _.difference(a, b)
Set
const set1 = new Set(a); const set2 = new Set(b); const unionSet = [...a, ...b]; const uniqueNumbers = unionSet.filter( (num) => !(set1.has(num) && set2.has(num)) );